Corporation stop with off-set connection



Oct. 31, 1933. .1. w, SIMPSON El AL CORPORATION STOP WITH OFF-SETCONNECTION Original Filed N v, 29, 1929 2 Sheets-Sheet l gwuenl owkfomes W5? 17 Oct. 31, 1933. w s N m- AL 1,933,190

CORPORATION STOP WITH OFF-SET CONNECTION Original Filed Nov. 29, 1929 2Sheets-Sheet 2 Patented Oct. 31, 1933 UNITED STATES CORPORATION STOPWITH ormss CONNECTION James V; Simpson and Frank H; Mueller, Dc-

V 'catur, 111., assignors to 'Mueller'Co Decatur;

111., a corporation of Illinois F r I Original application November 29,192:9, Serial No. 410,623. Divided and thisapplication De-v cember 27,1930. Serial NO. 505,133 I s'ol aims. (oi. 2-85-80 This application is adivision of application Ser. No. 419,623, filed November 29, 1929,Patent No..l,789,079 granted January 13, 1931. W

This invention .relates to corporation stops adapted for use in fluiddistribution systems.

It is an object of i the invention to produce a compact structure lessexpensive to. manufac ture than the well known stop in general use, andone which also .has features permitting; it to be more easily appliedand in much less time.

More specifically, it is an object of the inven-I tion to eliminate theuse of two or more cou-. plings which, are nowused to connect the inletfrom the main through the stop to-the service pipe. This is accomplishedin the present construction by means of an offset connection.

Moreover, with stops at present in;use, the outlet side is usuallythreaded to receive the boring tool. In the construction of thisinvention an independent tool attaching means is provided whichis inaxial alignment with the inlet side of the stop, and which will permitthe stop to be insertedwithout any danger of distortingthe stop orinterfering with; the outlet connection. I

It is an additional object of the inventionto overcome the generalcomplaint which now exists as regardsthe rotation of the service pipe orconnection which is connected to the stop. This disadvantageous featurehas been eliminated in the present construction by a novel connectingmeans which will serve to hold the service pipe or other connectionfirmly in engagement with the stop in fluid-tight communi, cation, and,at the same time, the service pipe or connection will not be capable of,rotation so as to interfere with the joint at the opposite end of theservice pipe. 1

In the drawings:

Figures 1, 2 and 3 are sectional viewsiof the invention.

The stop is indicated as a whole at 10, and is preferably cast in theform shown. An inlet 11 is provided and a valve 12 is employed as usual.

The casting is extended in axial alignment with the inlet 11 to providea projection or extension 13, and formed in this extension is a socket14. The socket 14 is shown asthreaded, but it may have any irregularinternal configuration, as square, hexagonal, or fluted.

The socket 14 receives the usual plug, which is connected to the boringbar of a tapping inachine, so that, in order to insert the stop in amain, it is only necessary to apply theusual plug to the socket 14 andoperate the tapping ma-- ,chine in the usual manner, as shown in Figure1.

.larged portion of theferrule.

Fo ed in t bo y p t n of e t e-- we n thet n o 13 andt inlet 1111s. anoffset connection indicated as a whole at. 15. connection has'a' recessformed therein w i is ar all th e deda h wn i 6. nd

0 its inte r ce s i pr v d d w th a rmjection' or flange 17, :thesurface of which is:

i t l be t rm be t e ,f t pan r service pipe. e v

Loosely disposed withinthe recess about the service pipe is an elongatedferrule 21; The ferrule 21 is provided at one endowith, an en.-largement or .ring 22 having a curved suriace 23 corresponding to;,the,curvature,,.in general, ofithe projection 17.

It will be understood that theflanged end'zO ofthe pipe 19 isreceivedbetween the respective curved surfaces of theprojection 17 andthe en.--

The ferrule may be formed of rigid material, such as hard metal, orit-may be made of some bendable or resilient metal as desired. It isimportant that the ferrule be of greater interior diameter than theexteriordiameter of the pipe 19,, in order that it may loosely surroundthe pipe 19 and permit the pipe 19 to expand under pressure, which maybe exerted in various ways,

as, forinstance, when the flanged portion; of the pipe is being clampedbetween the ferrule and the body portion of the stop.

A nut 24 is adapted to engage the threaded portion of the recess 16 ofthe connection 15, and the internal diameter of this nut is greater Ithan the external diameter of the ferrule so that the nut may movefreely about the ferrule. The nut; at its inner end engages the enlargedportion of the ferrule toeffect a clamping of the service pipe betweenthe curved surface of the,

ferrule and the curved surfacevof the bodyportion of the stop.

By reason of this construction, as the nut is A tightened .to clamp theparts, it will not .grind upon the service pipe 19, as isusuallythecase, and cause it to rotate, thereby loosening any connection of-theservice pipe at its opposite end, which has been a serious diificulty.The nut'simply grinds upon the enlargement of the ferrule and theferrule body, and there is insuificient friction to cause the servicepipe to rotate. It will be noted that the enlargement upon the ferruleis provided with an abutment formed by the transversely extendingportion 26, which abutment is engaged by the nut and will take up orabsorb any grinding action or wear incidental to the rotation of thenut, as described.

By having the offset connection it will be understood that whereheretofore an elbow requiring two connections has been necessary, but asingle joint is now employed.

For example, with the usual design a oneeighth bend or a one-fourth bendcoupling is used to carry the servicepipe away from the corporation stopin a horizontal plane. The corporation stop, of course, is usuallyinserted in the main at an angle of about 45 01:23, and the bentcoupling straightens out the service pipe connection. Such aconstruction was used where the outlet was in alignment with the in letof the stop and where the outlet provided a. means for working the stopinto a main. With the present invention the separate bent couplingusually employed is eliminated by setting the connection 15 at an angleof 45 to 23, as may be desired, and employing the extension 13.

Thus not only is the coupling member which is now generally employed,and which adds to the expense of the construction, completelyeliminated, but, moreover, the necessity of providing two joints withtheuse of a bent connection is likewise overcome.

It will. be observed that the ferrule extends beyond the confines of therecess in the body portion, and also extends beyond the longitudinaldimension of. the nut, and is flared at its outer end, as shown at 25.

The purpose of this construction, of course, as heretofore described, isto eliminate any possibility of 'rotatingthe service pipe or otherconnecting pipe when it is being clamped to the stop, or when it isbeing subsequently tightened.

The invention overcomes numerous disadvantages which have heretoforebeen experienced, and eliminates in a small article of this charitemsacter items of expense which have heretofore materially added to thecost of installations. Moreover, the construction can be cast withoutdifliculty and does not require the use of any specific type of boringbar or tapping machine for its application.

What we claim is:

1. In a corporation stop adapted to be inserted in a main at an anglebetween the vertical and horizontal planes of the main, an outlet, saidoutlet when the stop is inserted at an angle between the vertical andhorizontal planes of the main opening in a substantially horizontalplane for connection to a substantially horizontally disposed servicepipe leading from the main, and a connection between said outlet andsaid service pipe comprising a sleeve surrounding the service pipe, anut surrounding the sleeve and having threaded connection with said stopat the outlet, said sleeve forming a bearing for the nut throughout itslength and said nut disposed within the confines of said sleeve, andmeans on said sleeve for retaining said nut thereon and permittingrotary movement of the nut relative to said sleeve.

2. A connection for two fluid confining members comprising a sleeveencircling one of said members and a nut threaded in the other of saidmembers and movable about the sleeve, said sleeve having outwardlyflared end portions and said nut being loosely confined between saidflared portions, whereby rotative movement of the nut relative to saidsleeve is permitted.

3. A connection for two fluid confining members comprising a sleeveencircling one of said members and a nut threaded in the other of saidmembers and movable about the sleeve, said sleeve having an outwardlyextending flanged portion at one end and said nut engaging the flangedportion of the sleeve, and means at the other end of the sleevecooperating with said flanged portion to retain the nut on the sleeveand permit rotary movement of the nut thereon.

JAMES W. SINIPSON. FRANK H. MUELLER.

